A Current Sensorless MPPT Algorithm For A Low-cost PV Array Controller

被引：0
|
作者：
Li, Jiachen [1 ]
Peng, Xiangyu [1 ]
Wang, Jiali [1 ]
Wang, Qun [1 ]
Lyu, Zhengyu [1 ]
Zhang, Damin [1 ]
机构：
[1] Zhejiang Univ, Elect Engn Coll, Hangzhou, Zhejiang, Peoples R China
来源：
2017 IEEE 3RD INTERNATIONAL FUTURE ENERGY ELECTRONICS CONFERENCE AND ECCE ASIA (IFEEC 2017-ECCE ASIA) | 2017年
基金：
中国国家自然科学基金;
关键词：
current sensorless; MPPT; interleaved flyback; quasi-resonant;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, a current sensorless maximum power point tracking (MPPT) algorithm for a low-cost PV array controller is proposed. In order to reduce the cost on controllers and sensors, the PV array controller is based on controlling turnon time of the interleaved flyback converter and DC bus output is designed. The controller only samples the input voltage without the need for a current sensor, which cuts down the cost of the system. The interleaved flyback converter is used to reduce the filtering pressure of the input and output capacitor of the converter. What's more, the converter is designed to work in quasi-resonant and soft-switching state to improve efficiency. To verify the effect of proposed MPPT algorithm, a design example of a 50kHz, 32V, 4A input, 225V output 128W flyback converter is given in this paper.
引用
收藏
页码：728 / 732
页数：5
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